New Zealand Journal of Agricultural Research abstracts
Modelling three-dimensional architecture of pine tree (Pinus
sylvestris Linn. var. mongolica Litv.) in a semiarid area
Feng Wang1
Yan Guo1
Qi Lu2
Xuefeng Bai3
Hui Han3
Baoguo Li1*
1Key Laboratory of Plant-Soil Interactions
Ministry of Education
College of Resources and Environment
China Agricultural University
Beijing 1 4, China
2Chinese Academy of Forestry
Beijing 1 1, China
3Sand Fixation and Afforestation Institute of Liaoning
Province
Fuxin, 123000, China
*Author for correspondence: libg@cau.edu.cn
Abstract A dynamic model for three-dimensional (3D)
simulation of pine tree (Pinus sylvestris Linn. var. mongolica
Litv) architecture based on dual-scale automata is presented. The
developmental sequence of pine trees was analysed qualitatively by
identification of types of organs and elementary units. A dual-scale
automata model was used to describe the topological structure of the
pine tree. The model is a collection of a large number of elementary
units corresponding to the organs of the tree. The time step of
simulation is set for 1 year. The model stochastically simulates the 3D
architecture of a pine tree crown based on the Monte Carlo method and
has been parameterised for juvenile pine trees. Topological and
geometrical parameters were calculated using a large amount of field
data of branch number and internode lengths and diameters for 1- to
6-year-old pine trees. Visualisation of a 3D pine tree is presented.
The model provides a good quantitative description of the 3D
architecture of a single pine tree crown.
Keywords dual-scale automata; Monte Carlo method; Pinus
sylvestris Linn. var. mongolica Litv.; plant model;
three-dimensional (3D) architecture
A07107; Online publication date 8 February 2008; Received and
accepted 10 August 2007
New Zealand Journal of Agricultural Research, 2007, Vol. 50:
903–909
0028–8233/07/5005–0903 © The Royal Society of New Zealand 2007
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